help!

Okay so my mother-in-law is always up in my business and relationship and I can not stand it my husband tells me to ignore her but fuck sake she is rediculouse sometimes!! And she is always trying to tell us what we can and can not do and how to parent our daughter and if I say something that I know is wright and she will get all pissy and tell me I'm wrong she always has to be right! We us to be real close and latly Iv just been trying not to even talk to her cuz I can say anything without her running her mouth or her going straight to my husband don't even give me time to tell him first... what do I do?